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[Bug]: FW V1.9.0 regression in LPTIM setup

bugSomething isn't workingSomething isn't working

halHAL-LL driver-related issue or pull-request.HAL-LL driver-related issue or pull-request.

internal bug trackerIssue confirmed and logged into the internal bug tracking systemIssue confirmed and logged into the internal bug tracking system

lptimLow-Power TimerLow-Power Timer

Status: Open.

Bug

#77 In STMicroelectronics/STM32CubeU5;

· morse-evanbenn opened on Aug 17, 2026

LPBAM I2C MasterTx silently writes wrong SADD on bus (STM32CubeU5)

bugSomething isn't workingSomething isn't working

cube mxTools-related issue or pull-request.Tools-related issue or pull-request.

internal bug trackerIssue confirmed and logged into the internal bug tracking systemIssue confirmed and logged into the internal bug tracking system

lpbamLow-Power Background Autonomous ModeLow-Power Background Autonomous Mode

Status: Open.

Bug

#68 In STMicroelectronics/STM32CubeU5;

· pbwarmu017 opened on May 9, 2026

wring lpbam code generation

bugSomething isn't workingSomething isn't working

cube mxTools-related issue or pull-request.Tools-related issue or pull-request.

internal bug trackerIssue confirmed and logged into the internal bug tracking systemIssue confirmed and logged into the internal bug tracking system

lpbamLow-Power Background Autonomous ModeLow-Power Background Autonomous Mode

spiSerial Peripheral InterfaceSerial Peripheral Interface

Status: Open.

Bug

#67 In STMicroelectronics/STM32CubeU5;

· TUBUSER1GFBPROJ opened on May 6, 2026

possible error in stm32_ll_lpbam.c

bugSomething isn't workingSomething isn't working

internal bug trackerIssue confirmed and logged into the internal bug tracking systemIssue confirmed and logged into the internal bug tracking system

lpbamLow-Power Background Autonomous ModeLow-Power Background Autonomous Mode

utilsUtilitiesUtilities

Status: Open.

Bug

#65 In STMicroelectronics/STM32CubeU5;

· TUBUSER1GFBPROJ opened on May 6, 2026